Examine source code of YouTube OCR

{
  "manifest_version": 3,
  "name": "YouTube OCR",
  "version": "1.0.0",
  "description": "Extract text from images in YouTube videos.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://youtube.com/*",
    "https://www.youtube.com/*"
  ],
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "scripts/*",
        "images/*"
      ],
      "matches": [
        "https://youtube.com/*",
        "https://www.youtube.com/*"
      ],
      "use_dynamic_url": false
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self';"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/tesseract.min.js",
        "content.js"
      ],
      "matches": [
        "https://youtube.com/*",
        "https://www.youtube.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "jobayer.mojumder71@gmail.com"
    }
  }
}